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Old 05 February 2009, 03:22   #1
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Tube cleaning problems

Any suggestions for removing sun-oil stains from hypalon, they're dolphin watching ribs that people have been leaning over leaving sun-oil on the tubes. It's left black spots on the tubes that can just be felt with a fingernail but also appear to have spread into the material.
I've got a well known tube cleaner that gets everything else off but has no effect on this other than a very slight fading, i haven't but the owner assures me he's tried acetone.
Any ideas?
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Old 05 February 2009, 04:59   #2
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Might be best off getting it as clean as you can then just accepting the tubes are marked.
For the next season though apply a decent quality Carnauba wax, the RNLI used to use Meguiars Mirror wax #16 but it left the tubes very very slippy. Repels water really well and gives the tubes a nice deep colour.

Sorry I can't be of any more help.
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Old 05 February 2009, 07:15   #3
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Steve,

There are two generic products people on here swear by (as well as Rib Revive - which I guess is either what you used or similar). Either TFR - "Traffic Film Remover"; or spray paint thinners.

Suggest you search for them on here for specifics of how best to use (e.g. diluted, times before rinsing etc).

Neither are particulalry "nice" and appropriate protection will be required both for you during use, and for the boat afterwards. If neither of those work then I think its permanent!
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Old 05 February 2009, 07:36   #4
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It sounds like mold growth. It could well be down into the structure of the hypalon. If it is mold, solvents don''t usually affect it. Bleach is a good mold remover. You could try a household mold removing spray. Dunno what effect it will have on the material though.
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Old 05 February 2009, 07:39   #5
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Quote:
Originally Posted by Polwart View Post
Steve,

There are two generic products people on here swear by (as well as Rib Revive - which I guess is either what you used or similar). Either TFR - "Traffic Film Remover"; or spray paint thinners.

Suggest you search for them on here for specifics of how best to use (e.g. diluted, times before rinsing etc).

Neither are particulalry "nice" and appropriate protection will be required both for you during use, and for the boat afterwards. If neither of those work then I think its permanent!
Be very careful using thinners as although it will propably remove the offending mark it will also disolve the tube material so use sparingly and test on an inconspicuous area first
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Old 05 February 2009, 08:10   #6
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Petrol works very well as a solvent and isn't too agressive. If that doesn't work it could be mould as JW said.

TFR is great for cleaning tubes but has to be over 50% mixed with water. Use a soft scrubbing brush.
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Old 05 February 2009, 09:12   #7
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If its like black dots within the fabric....nothing removes them
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Old 05 February 2009, 14:20   #8
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how about some daz (other washing powders are available)
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Old 06 February 2009, 04:10   #9
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Orca the hyplalon makers have brought out a " deep Cleaner " we tryed it on an old boat with black spots and did a very good job it will need several applications and is very costly but worth a go.

I think it is bleach based.

Google Orca and contact them direct.
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Old 06 February 2009, 04:26   #10
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i had black dots on my yellow boat and tried everything, i started with the usual stuff and slowly got more and more aggressive, i emailed all the tude material people and never got a reply back, i finished up double skinning to whole nose of my ribs just to get rid of them, but before we covered them up i sanded through one and it seems to be the under layer is trying to push its way through the outer layer, the other thing that accured to me is that if the under layer had bumps in it the more you cleaned it the more they showed because you're making the outer layer thinner, i may be wrong but i still never found anything to get them out, best thing i got for my boat was a breathable all over cover
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